A digital camera (or digicam for short) is a camera that takes video or still photographs, or both, digitally by recording images via an electronic image sensor.
Front and back of a Canon PowerShot A95.

Many compact digital still cameras can record sound and moving video as well as still photographs. In the Western market, digital cameras outsell their 35 mm film counterparts.

Digital cameras can do things film cameras cannot: displaying images on a screen immediately after they are recorded, storing thousands of images on a single small memory device, recording video with sound, and deleting images to free storage space. Some can crop pictures and perform other elementary image editing. Fundamentally they operate in the same manner as film cameras, typically using a lens with a variable diaphragm to focus light onto an image pickup device. The combination of the diaphragm and a shutter mechanism is used to admit the correct amount of light to the imager, just as with film; the only difference is that the image pickup device is electronic rather than chemical.

Digital cameras are incorporated into many devices ranging from PDAs and mobile phones (called camera phones) to vehicles. The Hubble Space Telescope and other astronomical devices are essentially specialised digital cameras.

Wednesday, October 28, 2009

Canon IXUS 95 IS / PowerShot SD1200 IS

Canon IXUS 95 IS / PowerShot SD1200 IS


When a camera puts a smile on your face the moment you hold it, imagine how great you’ll feel when you see your first pictures! The PowerShot SD1200 IS Digital ELPH has everything going for it - exuberant color, the sculptured style of Canon’s famed ELPH series - and the innovative know-how that takes you to a whole new level of picture-taking accomplishment. Fun, smart and a style that follows you everywhere.

  • Enables user to capture and print large, high-quality pr…

Specifications

  • Format
    Ultra Compact
  • Max resolution
    3648 x 2736
  • Low resolution
    3648 x 2048, 2816 x 2112, 2272 x 1704, 1600 x 1200, 640 x 480
  • Image ratio w:h
    4:3,16:9
  • Effective pixels
    10.0 million
  • Sensor size
    1/2.3 " (6.16 x 4.62 mm, 0.28 cm²)
  • Pixel density
    35 MP/cm²
  • Sensor type
    CCD
  • ISO rating
    Auto, 80 ,100, 200, 400, 800, 1600
  • Zoom wide (W)
    35 mm

Release Date

  • First seen
    6 February 2009

Samsung SL620

Samsung SL620

The SL620 has everything you need in one compact camera. 12.2 megapixels give you the power to capture memories with beautiful details. And with a 5x optical zoom, it’s easy to get close to your subjects. Worried that photos might be less than perfect? The SL620 includes the SAMSUNG perfect portrait system which automatically retouches facial imperfections, selects the right scene mode and more. Make every shot a beauty, with the SL620 digital camera.


Specifications

Image sensor

  • Type
    1/2.33" (approx. 1.09 cm) CCD
  • Effective Pixel
    approx. 12.2 megapixel
  • Total Pixel
    approx. 12.4 megapixel

Focusing

  • Type
    TTL auto focus (multi AF, center AF)
  • Modes
    normal: 80 cm ~ infinity macro: 10 cm ~ 80 cm (wide), 50 cm ~ 80 cm (tele) auto macro: 10 cm ~ infinity (wide), 50 cm ~ infinity (tele)

Shutter

  • Speed
    auto: 1 ~ 1/2,000 s (AEB, continuous 1/4 ~ 1/2,000 s) night: 16 ~ 1/2,000 s

Exposure

  • Compensation
    ± 2 EV (1/3 EV steps)
  • ISO Equivalent
    auto, 80, 100, 200, 400, 800, 1600, 3200 (up to 3 M)
  • Metering System
    multi, spot, center-weighted AE

Flash

  • Recharging Time
    approx. 4 s, (approx. 5 s in low battery condition)

Release Date

  • First seen
    15 March 2009

Samsung SL420Samsung SL420

Samsung SL420


With 10.2 MP and a powerful optical zoom, it’s easy to capture every detail. And you won’t have to worry about flawed photos. It comes with a slew of tools to beautify those not-so-perfect shots. The SAMSUNG Perfect Portrait System includes beauty shot which automatically retouches facial imperfections and the Smart Auto feature. It automatically selects the scene mode ideal for the environment you’re shooting in. Capture all of your special moments with a camera that…


Specifications

Image sensor

  • Type
    1/2.33'' (approx. 1.09 cm) CCD
  • Effective Pixel
    approx. 10.2 megapixel
  • Total Pixel
    approx. 10.3 megapixel

Lens

  • Usable Lens
    still image mode: 1.0X ~ 5.0X play mode: 1.0X ~ 11.4X (depends on image size)

Viewfinder

  • LCD Monitor
    2.7"
  • Type
    TFT LCD

Focusing

  • Type
    TTL auto focus (Multi AF, Center AF, Face Detection AF, Object Tracking AF)
  • Modes
    normal: 80 cm ~ infinity macro: 10 cm ~ 80 cm (wide), 50 cm ~ 80 cm (tele) auto macro: 10 cm ~ infinity (wide), 50 cm ~ infinity (tele)

Shutter

  • Speed
    auto: 1 ~ 1/2,000 s (AEB, continuous: 1/4 ~ 1/2,000 s) night: 16 ~ 1/2,000 s

Exposure

  • Compensation
    ±2EV (1/3EV steps)

Release Date

  • First seen
    12 January 2009
Canon PowerShot G11


You asked, and Canon not only listened, but delivered big-time. Advanced amateurs who have overwhelmingly embraced the G Series will be delighted with the PowerShot G11, which features RAW mode for unlimited editing options, a 28mm wide-angle lens, and a 2.8-inch Vari-Angle PureColor System LCD. Add to that Canon’s new High Sensitivity System and high-speed ISO for incredible image quality, and Canon’s top-range compact digital camera is a truly groundbreaking success…


Specifications

  • Format
    Compact
  • Max resolution
    3648 x 2736
  • Low resolution
    3648 x 2048, 2816 x 2112, 2272 x 1704, 1600 x 1200, 640 x 480, 320 x 240
  • Image ratio w:h
    4:3, 16:9
  • Effective pixels
    10.0 million
  • Sensor size
    1/1.7 "
  • Pixel density
    23 MP/cm²
  • Sensor type
    CCD
  • ISO rating
    Auto, 80 ,100, 200, 400, 800, 1600, 3200
  • Zoom wide (W)
    28 mm

Release Date

  • First seen
    19 August 2009

Panasonic Lumix DMC-TZ7 / DMC-ZS3

Panasonic Lumix DMC-TZ7 / DMC-ZS3


10.1 Megapixel Digital Camera Intelligent Auto Mode Helps prevent shooting errors. LEICA DC Vario-Elmar Lens 25mm wide angle Venus Engine HD Supports AVCHD Lite & HDMI Silver.

Specifications

  • Format
    Compact
  • Also known as
    Panasonic Lumix DMC-TZ7
  • Max resolution
    3648 x 2736
  • Low resolution
    3776 x 2520, 3968 x 2232, 3072 x 2304, 3168 x 2112, 3328 x 1872, 2560 x 1920, 2656 x 1768, 2784 x 1568, 2048 x 1536, 2112 x 1408, 2208 x 1248, 1920 x 1080, 1600 x 1200, 640 x 480
  • Image ratio w:h
    16:9, 4:3, 3:2
  • Effective pixels
    10.1 million
  • Sensor photo detectors
    12.7 million
  • Sensor size
    1/2.33 " (6.13 x 4.60 mm, 0.28 cm²)
  • Pixel density
    36 MP/cm²
  • Sensor type
    CCD

Release Date

  • First seen
    7 January 2009

Canon Ixus 100 IS / Powershot SD780 IS

Canon Ixus 100 IS / Powershot SD780 IS
It may be the slimmest Digital ELPH Canon has ever created, but the impact couldn’t be bigger. The PowerShot SD780 IS Digital ELPH captivates the senses with bold saturated colors and a daringly original design that matches the intensity of Canon’s most innovative camera technology. Even when picture-taking conditions seem pretty unforgiving, you’ve got Canon on your side. So the shots you used to miss are the images you’ll now be sharing, and the movies you never too…


Specifications

  • Format
    Ultra Compact
  • Max resolution
    4000 x 3000
  • Low resolution
    4000 x 2248, 3264 x 2448, 2592 x 1944, 1600 x 1200, 640 x 480, 320 x 140
  • Image ratio w:h
    4:3,16:9
  • Effective pixels
    12.1 million
  • Sensor size
    1/2.3 " (6.16 x 4.62 mm, 0.28 cm²)
  • Pixel density
    43 MP/cm²
  • Sensor type
    CCD
  • ISO rating
    Auto, 80 ,100, 200, 400, 800, 1600
  • Zoom wide (W)
    33 mm

Release Date

  • First seen 9 February 2009

The arrival of true digital cameras





The first true digital camera that recorded images as a computerized file was likely the Fuji DS-1P of 1988, which recorded to a 16 MB internal memory card that used a battery to keep the data in memory. This camera was never marketed in the United States, and has not been confirmed to have shipped even in Japan.

The first commercially available digital camera was the 1990 Dycam Model 1; it also sold as the Logitech Fotoman. It used a CCD image sensor, stored pictures digitally, and connected directly to a computer for download.

In 1991, Kodak brought to market the Kodak DCS-100, the beginning of a long line of professional Kodak DCS SLR cameras that were based in part on film bodies, often Nikons. It used a 1.3 megapixel sensor and was priced at $13,000.

The move to digital formats was helped by the formation of the first JPEG and MPEG standards in 1988, which allowed image and video files to be compressed for storage. The first consumer camera with a liquid crystal display on the back was the Casio QV-10 in 1995, and the first camera to use CompactFlash was the Kodak DC-25 in 1996.

The marketplace for consumer digital cameras was originally low resolution (either analog or digital) cameras built for utility. In 1997 the first megapixel cameras for consumers were marketed. The first camera that offered the ability to record video clips may have been the Ricoh RDC-1 in 1995.

1999 saw the introduction of the Nikon D1, a 2.74 megapixel camera that was the first digital SLR developed entirely by a major manufacturer, and at a cost of under $6,000 at introduction was affordable by professional photographers and high end consumers. This camera also used Nikon F-mount lenses, which meant film photographers could use many of the same lenses they already owned.